Now, let's look at the types of systems. Exhaust-only. All right, let's get this one out of the way first. Using exhaust fans is great for local ventilation of bathrooms, kitchens, garages, and sub-slab areas (for radon control), but it's not a great strategy for whole-house ventilation. It does have some advantages: It's cheap.
When writing Common Sense, Paine wanted to show the common man why the United States should be independent of England. He also wanted to show these people that they had the resources needed to build a navy.
Thomas Paine wrote Common Sense in January 1776, but it was not published as a pamphlet until February 14, 1776. He wanted people to think about what was happening. He explained that the people must fight against the unfair and unjust ways of King George III and the British Parliament.